The lymphatic system plays a vital role in maintaining physical health by facilitating the drainage of excess fluids from tissues, thereby preventing edema. It is responsible for transporting immune cells, which are essential for identifying and combating infections. The system also absorbs fats and fat-soluble vitamins from the digestive system and delivers them to the bloodstream. Furthermore, the lymphatic system filters out harmful substances and contributes to the body’s overall defense mechanisms, thus promoting a robust immune response.